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sirit/src/op.cpp
2019-11-27 05:46:03 -03:00

134 lines
3.3 KiB
C++

/* This file is part of the sirit project.
* Copyright (c) 2019 sirit
* This software may be used and distributed according to the terms of the
* 3-Clause BSD License
*/
#include <algorithm>
#include <cassert>
#include <limits>
#include "common_types.h"
#include "literal_number.h"
#include "literal_string.h"
#include "op.h"
#include "operand.h"
namespace Sirit {
Op::Op(spv::Op opcode_, std::optional<u32> id_, Id result_type_)
: Operand{OperandType::Op}, opcode{opcode_}, result_type{result_type_}, id{id_} {}
Op::~Op() = default;
void Op::Fetch(Stream& stream) const {
assert(id.has_value());
stream.Write(id.value());
}
std::size_t Op::GetWordCount() const noexcept {
return 1;
}
bool Op::operator==(const Operand& other) const noexcept {
if (!EqualType(other)) {
return false;
}
const auto& op = static_cast<const Op&>(other);
if (op.opcode == opcode && result_type == op.result_type &&
operands.size() == op.operands.size()) {
for (std::size_t i = 0; i < operands.size(); i++) {
if (*operands[i] != *op.operands[i]) {
return false;
}
}
return true;
}
return false;
}
void Op::Write(Stream& stream) const {
stream.Write(static_cast<u16>(opcode), CalculateTotalWords());
if (result_type) {
result_type->Fetch(stream);
}
if (id.has_value()) {
stream.Write(id.value());
}
for (const auto* operand : operands) {
operand->Fetch(stream);
}
}
void Op::Sink(std::unique_ptr<Operand> operand) {
Add(static_cast<const Operand*>(operand.get()));
operand_store.push_back(std::move(operand));
}
void Op::Add(const Literal& literal) {
Sink([&] {
switch (literal.index()) {
case 0:
return LiteralNumber::Create(std::get<0>(literal));
case 1:
return LiteralNumber::Create(std::get<1>(literal));
case 2:
return LiteralNumber::Create(std::get<2>(literal));
case 3:
return LiteralNumber::Create(std::get<3>(literal));
case 4:
return LiteralNumber::Create(std::get<4>(literal));
case 5:
return LiteralNumber::Create(std::get<5>(literal));
default:
assert(!"Invalid literal type");
abort();
}
}());
}
void Op::Add(const std::vector<Literal>& literals) {
for (const auto& literal : literals) {
Add(literal);
}
}
void Op::Add(const Operand* operand) {
assert(operand);
operands.push_back(operand);
}
void Op::Add(u32 integer) {
Sink(LiteralNumber::Create(integer));
}
void Op::Add(s32 integer) {
Sink(LiteralNumber::Create(integer));
}
void Op::Add(std::string string) {
Sink(std::make_unique<LiteralString>(std::move(string)));
}
void Op::Add(const std::vector<Id>& ids) {
assert(std::all_of(ids.begin(), ids.end(), [](auto id) { return id; }));
operands.insert(operands.end(), ids.begin(), ids.end());
}
u16 Op::CalculateTotalWords() const noexcept {
std::size_t count = 1;
if (result_type) {
++count;
}
if (id.has_value()) {
++count;
}
for (const Operand* operand : operands) {
count += operand->GetWordCount();
}
assert(count < std::numeric_limits<u16>::max());
return static_cast<u16>(count);
}
} // namespace Sirit